Apparatus

Try JFK, AAL1290, BAW, or N225AN.

flight Aircraft

N23721

BOEING 737-700

Operated by UNITED AIRLINES INC

Tail number
N23721
Type
B737
Mode-S
A22539
Not currently tracked · last seen 3h ago
Flights observed
400 showing last 50
Avg flight time
2h 43m
Typical route
EWR → BNA
Last seen
3h ago

Last known area

Map centered near N23721's most recent activity.

Recent flights last 50

DateRouteTakeoffLandingDuration
2026-07-14 - Jul 14, 02:15 UTCJul 14, 03:30 UTC1h 15m
2026-07-14 IAH → MTY Jul 14, 01:52 UTCJul 14, 03:31 UTC1h 39m
2026-07-13 - Jul 13, 22:55 UTCJul 14, 00:20 UTC1h 25m
2026-07-13 - Jul 13, 19:25 UTCJul 13, 20:45 UTC1h 20m
2026-07-13 IAH → QRO Jul 13, 18:36 UTCJul 13, 21:08 UTC2h 32m
2026-07-13 - Jul 13, 12:35 UTCJul 13, 16:10 UTC3h 35m
2026-07-13 - Jul 13, 00:30 UTCJul 13, 03:45 UTC3h 15m
2026-07-12 - Jul 12, 20:10 UTCJul 12, 23:10 UTC3h 0m
2026-07-12 - Jul 12, 14:50 UTCJul 12, 17:35 UTC2h 45m
2026-07-12 IAH → SNA Jul 12, 14:50 UTCJul 12, 17:35 UTC2h 45m
2026-07-11 - Jul 11, 22:10 UTCJul 12, 01:00 UTC2h 50m
2026-07-11 - Jul 11, 17:55 UTCJul 11, 21:00 UTC3h 5m
2026-07-10 - Jul 10, 23:40 UTCJul 11, 16:25 UTC16h 45m
2026-07-10 - Jul 10, 19:10 UTCJul 10, 21:30 UTC2h 20m
2026-07-10 SLC → IAH Jul 10, 19:18 UTCJul 10, 21:29 UTC2h 11m
2026-07-10 - Jul 10, 15:00 UTCJul 10, 17:40 UTC2h 40m
2026-07-10 - Jul 10, 10:25 UTCJul 10, 12:50 UTC2h 25m
2026-07-09 ORD → PIT Jul 9, 23:47 UTCJul 10, 00:20 UTC33m
2026-07-09 - Jul 9, 23:25 UTCJul 10, 00:25 UTC1h 0m
2026-07-09 - Jul 9, 20:50 UTCJul 9, 21:45 UTC55m
2026-07-09 DPA → DSM Jul 9, 18:35 UTCJul 9, 19:25 UTC50m
2026-07-08 - Jul 8, 22:15 UTCJul 9, 16:10 UTC17h 55m
2026-07-08 - Jul 8, 18:30 UTCJul 8, 20:25 UTC1h 55m
2026-07-08 EWR → BNA Jul 8, 15:10 UTCJul 8, 17:00 UTC1h 50m
2026-07-08 TPA → EWR Jul 8, 12:30 UTCJul 8, 13:35 UTC1h 5m
2026-07-08 CLE → EWR Jul 8, 12:33 UTCJul 8, 13:30 UTC57m
2026-07-07 EWR → CLE Jul 7, 23:15 UTCJul 8, 00:20 UTC1h 5m
2026-07-07 - Jul 7, 18:40 UTCJul 7, 21:20 UTC2h 40m
2026-07-07 SFO → DEN Jul 7, 14:40 UTCJul 7, 17:15 UTC2h 35m
2026-07-07 SRQ → EWR Jul 7, 10:10 UTCJul 7, 12:30 UTC2h 20m
2026-07-07 EWR → SRQ Jul 7, 02:15 UTCJul 7, 04:50 UTC2h 35m
2026-07-06 BNA → EWR Jul 6, 22:20 UTCJul 7, 00:30 UTC2h 10m
2026-07-06 BNA → EWR Jul 6, 22:16 UTCJul 7, 00:29 UTC2h 13m
2026-07-06 EWR → BNA Jul 6, 17:45 UTCJul 6, 19:45 UTC2h 0m
2026-07-06 - Jul 6, 13:50 UTCJul 6, 16:00 UTC2h 10m
2026-07-06 - Jul 6, 10:40 UTCJul 6, 12:30 UTC1h 50m
2026-07-06 - Jul 6, 01:00 UTCJul 6, 03:55 UTC2h 55m
2026-07-05 - Jul 5, 17:40 UTCJul 5, 21:05 UTC3h 25m
2026-07-05 - Jul 5, 14:20 UTCJul 5, 16:05 UTC1h 45m
2026-07-05 JAX → EWR Jul 5, 13:49 UTCJul 5, 16:04 UTC2h 15m
2026-07-05 - Jul 5, 11:10 UTCJul 5, 12:55 UTC1h 45m
2026-07-04 - Jul 4, 20:00 UTCJul 4, 23:20 UTC3h 20m
2026-07-04 SFO → DEN Jul 4, 16:00 UTCJul 4, 18:50 UTC2h 50m
2026-07-04 TPA → EWR Jul 4, 13:10 UTCJul 4, 14:15 UTC1h 5m
2026-07-04 EWR → CLE Jul 4, 01:35 UTCJul 4, 02:30 UTC55m
2026-07-03 - Jul 3, 17:25 UTCJul 3, 19:45 UTC2h 20m
2026-07-03 SRQ → EWR Jul 3, 17:32 UTCJul 3, 19:40 UTC2h 8m
2026-07-03 - Jul 3, 13:40 UTCJul 3, 16:00 UTC2h 20m
2026-07-03 - Jul 3, 10:10 UTCJul 3, 12:30 UTC2h 20m
2026-07-03 EWR → SRQ Jul 3, 01:09 UTCJul 3, 03:10 UTC2h 1m

Specifications

Registration N23721
Aircraft type BOEING 737-700 (B737)
Operator UNITED AIRLINES INC
Mode-S code A22539 · 50422471 (octal)

Looking for transponder-level data? View the Mode-S A22539 page for country allocation, callsign history, and ADS-B signal details.

N23721 frequently asked

What type of aircraft is N23721?
N23721 is a BOEING 737-700 (ICAO type code B737).
Who operates N23721?
N23721 is operated by UNITED AIRLINES INC.
What is the Mode-S transponder code for N23721?
N23721 broadcasts on Mode-S (ICAO 24-bit) address A22539 (octal 50422471). View the transponder page.
What route does N23721 typically fly?
N23721 most frequently flies between EWR and BNA based on observed flights.
Where is N23721 right now?
N23721 is not currently being tracked; last seen 3h ago.